/*
This file is part of the iText (R) project.
Copyright (c) 1998-2025 Apryse Group NV
Authors: Apryse Software.

This program is offered under a commercial and under the AGPL license.
For commercial licensing, contact us at https://itextpdf.com/sales.  For AGPL licensing, see below.

AGPL licensing:
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License
along with this program.  If not, see <https://www.gnu.org/licenses/>.
*/
using System;
using iText.IO.Source;
using iText.Kernel.Exceptions;
using iText.Test;

namespace iText.Kernel.Pdf {
    [NUnit.Framework.Category("UnitTest")]
    public class PdfObjectStreamUnitTest : ExtendedITextTest {
        [NUnit.Framework.Test]
        public virtual void CannotAddMoreObjectsThanMaxStreamSizeTest() {
            PdfDocument pdfDocument = new PdfDocument(new PdfWriter(new ByteArrayOutputStream()));
            PdfObjectStream pdfObjectStream = new PdfObjectStream(pdfDocument);
            PdfNumber number = new PdfNumber(1);
            number.MakeIndirect(pdfDocument);
            //Here we add the maximum number of objects, so that adding the next one will cause an exception
            for (int i = 0; i < PdfObjectStream.MAX_OBJ_STREAM_SIZE; i++) {
                pdfObjectStream.AddObject(number);
            }
            Exception exception = NUnit.Framework.Assert.Catch(typeof(PdfException), () => pdfObjectStream.AddObject(number
                ));
            NUnit.Framework.Assert.AreEqual(KernelExceptionMessageConstant.PDF_OBJECT_STREAM_REACH_MAX_SIZE, exception
                .Message);
        }

        [NUnit.Framework.Test]
        public virtual void ObjectCanBeAddedToObjectStreamWithSizeLessThenMaxStreamSizeTest() {
            PdfDocument pdfDocument = new PdfDocument(new PdfWriter(new ByteArrayOutputStream()));
            PdfObjectStream pdfObjectStream = new PdfObjectStream(pdfDocument);
            PdfNumber number = new PdfNumber(1);
            number.MakeIndirect(pdfDocument);
            for (int i = 0; i <= PdfObjectStream.MAX_OBJ_STREAM_SIZE - 1; i++) {
                pdfObjectStream.AddObject(number);
            }
            NUnit.Framework.Assert.IsTrue(true, "We don't expect to reach this line, since no exception should have been thrown"
                );
        }
    }
}
